6.6: Geological Activity and Earthquakes- Challenge 1

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1. ___ is the type of stress that occurs at a transform boundary, which causes earthquakes.: Shearing

2. Why don't rocks deform under confining stress?: Space is too limited

3. Compressional stress ___.: decreases the space a rock takes up

4. Sedimentary rocks contain important information about ___.: the geological history of an area

5. As a rule, ___ rocks form in horizontal layers.: sedimentary

6. A ___ is a three-dimensional syncline.: basin

7. ___, which bend downward and have the youngest rocks in the center, and ___, which bend upward and have the oldest rocks in the center, are often found adjacent to each other.: Synclines; anticlines

8. The Michigan Basin is made by rock bent ___.: downward

9. A fracture with no movement on either side is a ___.: joint

10. The hanging wall drops down relative to the footwall in a ___.: normal fault

11. The Andes Mountains grow as the ___ subducts beneath the South American Plate.: Nazca Plate

12. ___ is a continental volcanic arc.: The Cascades

13. Mountain formation is associated with ___.: faulting, folding, and plate tectonics